30564160561 has 16 divisors (see below), whose sum is σ = 33670222848. Its totient is φ = 27513158400.

The previous prime is 30564160547. The next prime is 30564160573. The reversal of 30564160561 is 16506146503.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30564160561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30564160561.

It is not an unprimeable number, because it can be changed into a prime (30564160511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1339831 + ... + 1362451.

It is an arithmetic number, because the mean of its divisors is an integer number (2104388928).

Almost surely, 2^30564160561 is an apocalyptic number.

It is an amenable number.

30564160561 is a deficient number, since it is larger than the sum of its proper divisors (3106062287).

30564160561 is a wasteful number, since it uses less digits than its factorization.

30564160561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23832.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 30564160561 in words is "thirty billion, five hundred sixty-four million, one hundred sixty thousand, five hundred sixty-one".